<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <button @click = "isHappy =! isHappy">{{isHappy?'鸡':'只因'}}</button>
    <h1 v-show = "isHappy">篮球<br><img src="./lq.png" alt=""></h1>
    <h1 v-show = "!isHappy">背带裤<br><img src="./bdk.png" alt=""></h1>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {
        isHappy: true,
        
      },
      methods: {

      }
    })

  </script>
</body>
</html>